W asymmetries at CDF and D0

TL;DR

This paper reports on recent measurements of W and charged lepton asymmetries from the CDF and D0 experiments, comparing them with theoretical predictions and highlighting discrepancies at high transverse momentum.

Contribution

It introduces a new matrix element technique for measuring W asymmetry and compares experimental results with theoretical models, revealing areas of inconsistency.

Findings

The CDF W asymmetry measurement agrees with theory.

Lepton asymmetry measurements show discrepancies at high transverse momentum.

Theoretical predictions are less consistent with D0 and CDF lepton asymmetry data.

Abstract

We present recent W and charged lepton asymmetry measurements from the CDF and D0 experiments. Theoretical predictions agree with the CDF W asymmetry, measured using a new matrix element technique. These theoretical predictions are less consistent with the latest lepton asymmetry measurements from D0 and CDF, especially for high charged lepton transverse momentum.